Motorcycle Engine Oil (MCO) is a specific type of lubricant designed for use in motorcycle engines. The code "SAE 15W50" indicates its viscosity grade, which represents its flow characteristics at different temperatures. The "SAE" stands for the Society of Automotive Engineers, and the numbers "15W50" mean that the oil has a viscosity grade of 15 at low temperatures (W for winter) and 50 at high temperatures.
API (American Petroleum Institute) SM is a classification for engine oils developed by the API. The "SM" rating indicates that the oil meets the performance requirements for gasoline engines and provides improved protection compared to previous API classifications.
"Brand - BULLET ROYAL SYNTH" suggests that the specific brand of this motorcycle engine oil is "BULLET ROYAL SYNTH."
When selecting an engine oil for your motorcycle, it's essential to follow the manufacturer's recommendations found in the motorcycle's owner's manual. Different motorcycles may require specific types of engine oil with particular viscosity grades and API ratings to ensure optimal performance and engine longevity. Using the wrong type of oil may cause engine issues and void warranties, so it's crucial to use the recommended oil for your specific motorcycle model.